Scram Sonic

What is the next development in “long range” commercial aircraft?

I wonder, is a scram/ram jet airliner, that travels above the normal means of todays airliners, something of fiction, or are we close to this? It would seem if we could have such an aircraft able to take of and land at normal speeds, rapidily ascend to altitudes above the “sonic boom” noise envelope,it would be viable,cutting international times by 1/2? any thoughts? would love to hear from actual commerical aircraft drivers regarding training, problems etc. thanks

On paper, speed always appears attractive. Who wouldn’t want to be able to fly from Los Angeles to Tokyo in 6 hours instead of 12?

But the lesson from the 1970s, with Concorde, is that no matter how much you’d like to halve the travel time, the average traveller won’t pay for it. And while airlines make their money on the full-fare and first/business class travellers, they avoid losing it with the “discretionary” budget traveller. That may sound crazy, but if you want the profitable travellers, you need to have seats to sell them; since aircraft come in fixed sizes, you can rarely arrange to have exactly the right number of seats for the profitable passengers, so you’ll generally have to have “spare” seats over and above the number you want. Flying an empty seat costs money, but flying a person in that seat only costs a little more. So selling a ticket at just more than the extra cost of flying a person actually reduces the loss.

The snag is that it always costs more to go faster than it does to plod along — and the people who will pay the loss-reducing fare for the cheap flight will (typically) not pay the higher fare for the equivalent loss-reducing seat on the fast one. So the market for Concorde collapsed when fuel costs spiralled in the 1970s, and the 747 became the queen of the North Atlantic instead of the Concorde.

Added to that is the new wrinkle of environmental concerns. Faster aircraft will generate more pollution than slower ones (the normal trade-off of speed vs. efficiency). And noise pollution is another concern.

In short, I don’t see anything exciting in terms of speed. I suspect the next iteration will combine the absolute efficiency of the Boeing 787 with the scale of the A380, to get an aircraft that burns less fuel and produces less pollution per passenger mile.

(Ericbryce’s comments about the number of people on an A380 are off base, by the way, because the difference between a 747-400 and an A380 are negligible when you factor in the number of aisles: the A380 has two decks it’s full length, so basically twice as many aisles. Further, the 747-400D in use in Japan regularly carry more than 500 people…)

Another issue with supersonic transport involves the altitudes; obviously, to reduce the noise footprint (and air friction) you need to get very high (again: Concorde flew above 50,000 feet). At those altitudes, losing cabin pressure is a big problem: the normal yellow supplemental oxygen masks don’t work (well, they work, but you can’t get enough oxygen from them). Concorde handled it by performing an emergency descent, but at some stage (70,000 ft? 90,000 ft?) you just can’t get low enough fast enough…

What I do see happening, and what I think the next development will be, is a move towards pilotless aircraft. Maybe not initially totally pilotless, but e.g. long range aircraft with only two crew instead of the current three or four. The aircraft will be flown primarily from the ground, with the on-board pilots as backup and for flying in congested airspace during take-off and landing.

Keep Dog Off Couch

P3 International P7901 Mole Chaser

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The P3 International P7901 Molechaser makes moles scram by emitting a penetrating sound that sets the rodents’ sensitive hearing on edge. Operating in a circular pattern of 100 feet, the Molechaser also chases off ground squirrels, shrews, voles, pocket mice, and gophers. It won’t harm the rodents or your earthworms or your pets; it won’t even harm your lawnmower, because you can bury it flus…

Scram Patrol Sonic Animal Chaser

$16.97

Ingenious Sonic Scram Patrol Gun Complete with Laser Light Sighting. Repels cats, dogs, squirrels and other nuisance animals without harm. Effectively target animals up to 20 feet away. Ultra Sonic for use without detection or disturbance of neighbors. Can also be used as a PET TRAINER to help emphasize verbal commands such as sit, heel, stay, quite down, etc. Measures 4.75 x 4.25 x 1.5 inches and…

Trademark Poker 825465 Scram Patrol Sonic Animal Chaser

$39.3

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Jobar International JB5465 Scram Patrol SNC Animal Chaser

$17.49

Jobar International JB5465 Scram Patrol SNC Animal Chaser Jobar International JB5465 Scram Patrol SNC Animal Chaser Features: Animal chaser Repels cats, dogs, squirrels and other nuisance animals without harm Effectively target animals up to 20 feet away Ultra Sonic for use without detection or disturbance of neighbors Can also be used as a pet trainer to help emphasize verbal commands such as sit, heel, stay, quite down, etc. Batteries not included

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Bob The Builder – Let’s Scram!

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Synergy Labs Scram Animal Repellent

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Synergy Labs Scram Animal Repellent

Jobar International Inc Scram Patrol SNC Animal Chaser JB5465

$36.05

Animal chaser. Repels cats dogs squirrels and other nuisance animals without harm. Effectively target animals up to 20 feet away. Ultra Sonic for use without detection or disturbance of neighbors. Can also be used as a pet trainer to help emphasize verbal commands such as sit heel stay quite down etc. Batteries not included. Length: 5. Width: 2. Height: 5

ITC Scram Gravy™ Regular

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Download the ITC Scram Gravy™ Regular font for Mac or Windows in OpenType, TrueType or PostScript format.

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I Am of Scram

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Meet an unhappy king whose name is I AM, who lives in a strange little kingdom called Scram. Theres only one road to the kingdom of Scram, guarded by an oddlooking creature named Fram. What can change things? What can be done? Author: Gerhardt, Barbara P./ Gerhardt, Barbara P. Binding Type: Paperback Number of Pages: 36 Publication Date: 2007/01/01 Language: English Dimensions: 8.50 x 8.50 x 0.09 inches

Deer Scram Deer & Rabbit Repellent – 2.5 lb

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Deer Scram Deer & Rabbit Repellent – 6 lb

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Deer Scram Deer & Rabbit Repellent – 25 lb

$110

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Scram, Kid!

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This book is in Used condition

Scram Toots

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Scram (Instrumental)

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We believe it is important to preserve what makes music special, and make it easy to craft listening experiences. At MOG, browse millions songs and play them instantly. Or just turn on radio where you can stop and replay songs. You can also create playlists for any occasion, and even download songs to your mobile. We are dedicated to employing the cleanest but most powerful technology so you can enjoy music as much as ever.

Scratch n Scram

$24.95

Makes scratching dogs scram! Durable, scratch-resistant clear vinyl trains your dog as it protects your home’s surfaces from unsightly damage by releasing a citronella scent when scratched that repels dogs! Great for use on doors, windowsills, floors or furnitureanywhere you don’t want your dog to scratch. Easy to cut with scissors; non-permanent adhesive for easy removal. 13 1/2″ x 34″.

Men’s Scram Lite

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The GoLite Scram Lite is a shoe that looks good with a pair of jeans, but easily makes the transition to muddy trail champion. The Nubuck leather upper offers suave looks and rugged protection, while the Precision Fitâ„¢ system allows any foot to get the fit needed for maximum stability and comfort. Sticky Geckoâ„¢ Gripstickâ„¢ Rubber outsole performs anywhere and everywhere, even if there’s a river crossing on the horizon. Get the traction you need, without all of the weight!

Deer Scram 6lb Rabbit Scram Repellent Granular White Pail

$49.09

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